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php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>gethostbyaddr</H1
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>    (PHP 3, PHP 4, PHP 5)</P
>gethostbyaddr&nbsp;--&nbsp;
     Get the Internet host name corresponding to a given IP address
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>说明</H2
>string <B
CLASS="methodname"
>gethostbyaddr</B
> ( string ip_address )<BR
></BR
><P
>&#13;     Returns the host name of the Internet host specified by
     <CODE
CLASS="parameter"
>ip_address</CODE
> or a string containing the unmodified
     <CODE
CLASS="parameter"
>ip_address</CODE
> on failure.
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>例 1. A simple <B
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>gethostbyaddr()</B
> example</B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$hostname </font><font color="#007700">= </font><font color="#0000BB">gethostbyaddr</font><font color="#007700">(</font><font color="#0000BB">$_SERVER</font><font color="#007700">[</font><font color="#DD0000">'REMOTE_ADDR'</font><font color="#007700">]);<br /><br />echo </font><font color="#0000BB">$hostname</font><font color="#007700">;<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>&#13;     <P
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